Double charging my account

I never ever received a bad customer service from jet store call center, I lodge a complaint on the 09/05/2023 about double charging on my account, the first consultant said they will phone me back, it's been 2 works I've been waiting for the call, now I decide to phone them again, the consultant I was speaking to told me to wait again she doesn't know how long the investigation will take ontop of that 2 weeks I waited I must still wait again and she doesn't know how long.They can phone you 10 times a day if u miss one payment, when u have queries they can take up to 5 years