yes.... and no
mine was a complaint whereas yours is more serious trying to get a refund.
I did get a reply to a complaint I (politely but clearly) made. They responded by email. I believe I filled in a form on their site.
My issue is that date and place of birth is required information to buy tickets. Those two things with one other normally "socially-available" (though I AM private) information and few $$ someone can obtain my birth certificate, and then with that apply for more ID and very quickly they are me and taking out a mortgage on my house and I am wearing a barrel and suspenders.
I did not expect a reply but it did arrive (filtered into spam so check your junk folder) after about three weeks. Said it is required by Italian law, sorry, etc. Maybe, but why does b-ticket (for Uffizi, etc. in Florence) not need that level of detail. I realize Vivaticket is huge and sell tickets for all sorts of venues so conditions can be different over b-ticket. But having one on-line vendor for the Scrovegni Chapel in Padova is lousy IMHO
Suggestions for you?
Sorry, nothing good. Have you tried a dispute with your credit card. I realize a year has passed but I know at one time they were forgiving the long delays. Stress that the vendor has been non-responsive to you (hence the delay).
It took me 6 months and many emails with booking dot com to get a refund for April 2020 accommodation in Florence. At first they replied don't yet qualify, then will refund, will request refund, repeat, repeat... Finally had a chat session with a rep who actually looked at history and saw the other reps were submitting a request (and the vendor was non responsive). This rep put me on hold, dealt with triggering an actual refund. So persist; firm, polite and stick to brief facts.
You too just might hit a good one. Good luck