Liquid Capital lack of response

Good day,

Right, so I took a service plan with Liquid Capital for my Hyundai Grand i10. Recently I changed my bank account and I need to change these details for Liquid Capital. I had a live chat and they made a log to have someone call me to change this. Phineas called me and sent an email to which I had to send my banking details and proof of it. I sent this on Thursday already and have had no reply except for three SMSes that say documentation pending.

I need to get this changed as soon as possible so I can close down my other account. This is the only deduction still on my old account. Now I am worrying about my upcoming service too...am I going to get more problems there too?