Why am I getting Radio-frequency ablation for first time SVT?

Hi, I hope someone can help, and I thank you in advance. A few weeks ago in December, I had my first and only episode of SVT. My heart rate was around 230bpm for nearly 3 hours. They finally got it down at hospital with adenisone. I stayed overnight in hospital and had a heart scan, and had to go back for another one a couple of weeks ago. Now I have an appointment finally with a consultant, so I was looking forward to seeing him 31st January, to find out more about it. I really haven't been worried and haven't really thought about it to be honest.

However yesterday I got a letter from the hospital informing me of my admission for a radio frequency ablation procedure on 9th February! There is no letter explaining why I need it, what it is, etc. and now after some research, I know exactly what it is but I am even more confused. It seems to be a course of treatment for people who have had recurrent symptoms, that have not responded to medication. I have had one episode and I've been taking beta blockers, since I was prescribed them at the hospital.

So after reading about people having to wait years for this expensive treatment, after suffering recurrent episodes of SVT, I am really confused as to why I seem to be getting this procedure seemingly as a matter of urgency in just a few short weeks from my one and only SVT attack. It is an invasive procedure which destroys the problem area of the heart.They want to microwave my heart! 😂
Wow, considering I don't seem to fit the criteria needed for most people to qualify for this treatment, I am at a complete loss. I'm quite upset there was no explanation letter or phone call, and I can't help but worry that there is something more seriously wrong with my heart. I don't usually worry if I don't have all the information, but this time I am, and I still have over a week before my first consultant appointment. I have actually been feeling a little nauseous with worry today, and that is not like me normally.
I really hope someone knows something, I have waited all day for a reply on 'patient' but got nothing, so now I'm trying here as it looks a little less like tumbleweed might roll by here... ;)

I would really appreciate if anyone could throw some light on this for me. Thank you. :D

Thank you for replying. Although if I get one, I'll be happy, I've given up trying to get an answer ;).A second opinion is not the answer at the moment. The point is I haven't actually even got a first opinion yet. I was just sent this appointment with no explanation. I guess I'm going to have to wait until my consultant's appointment. I was just hoping someone might have some input because at the time of the post it just felt like such a long time to be in the dark.

Thank you for your reply, I wouldn't just refuse without knowing why I had been put forward for this, as it may be necessary. I don't mean to be rude, and I do appreciate your input, but there's no way you can know that there is obviously no need for an ablation. Also just in a week of looking up about this, I know that there are different types of SVT and that although rare, there is a form that can actually be life threatening. My waiting time is up and I see the consultant tomorrow, so I will see what he has to say. They did say my heart rate was irregular as well as fast by the way. My heart rate was around 230 for around 3 hours, but kept dropping right down to about 170ish before flying back up to 230ish again much of that time.
I will of course be asking why he wants me to have this procedure, and I think you are right; if it appears there is no good reason I will refuse it, but my doctor and I both think that he must have seen something on my last scan and that he wouldn't be offering this if it wasn't necessary. I will post what he says tomorrow. I'm also thinking there's a possibility he could be mixing me up with another patient, as in the letter to my doctor he said he had discussed this with me and I had agreed to it. I haven't even seen him yet apart from that first time I was brought in by ambulance.