Ticketmaster complaint: Forfeited tickets

This issue has been ongoing since September last year. Firstly, I ordered two tickets for the TRNSMT festival taking part July 2023. I ordered them on their payment plan option and paid the first instalment. However, for a couple of months afterwards I was trying to contact them to change over my email address and bank details as my bank card had expired. This was to no avail. It is almost impossible to contact Ticketmaster.
Anyway, after going through social media, I received a message telling me to contact them on Twitter, and they then provided me a form to change my email address. So that was successful.
Still no payment had been taken from my bank account.
It is now December. Still no payment taken. I now have an email to say my tickets are forfeited due to missed payment.
I managed to find an email and spoke with their customer services, who put my in contact with a dispute company for Ticketmaster. My tickets were reinstated.
I spoke (through email) about changing my bank details to continue the payment scheme.
Another three month has last, we are now in March. Still no payment taken.
I have emailed about this, worried my tickets will be lost, alongside the £120 I have already paid.
Fast forward to 2 weeks ago, still no payment and my tickets have been forfeited….again!
This has been 9 months trying to pay these tickets. Several attempts to updated details, which were supposed to be updated.
Secondly, when you do try and contact Ticketmaster it is only through their online chat service, forms, or email. However, I did manage to find a phone number. Each time I am on hold for at least 45 minutes. On my last phone call the girl I spoke to, with very broken English, raised her voice. Telling me “she was only an agent and there is nothing she could do!!”. Now at no point did I raise my voice to her, so this was unexpected, and unacceptable.
Thirdly, I am a primary school teacher and only have a couple of breaks during the day, by the time my school day ends Ticketmaster is closed. How on earth do they expect anyone to resolve any issues when they can’t communicate with them.
Lastly, these tickets have been bought as a gift. My partners family members are travelling 8 hours to come to this event and these tickets are now forfeited. I’m not in a position to be paying out an additional £120, on top of the ticket prices. They are expensive enough.

Thank you for your time,
I really hope you can help with this situation.

With kind regards,
Jennifer.