Worst service ever from Finchoice

Was double debited without consent by Finchoice. Eve called and emailed them prior on which they confirmed they will not double debit my account. Lodged a formal complaint and it's been 2 weeks with no resolution. Was last promised that they will listen to the calls. Even sent them prove of an email from them confirming that that they said they will not double debit my account. To date they keep ignoring my emails and dropping my calls. I guess the below response from them will be that they apologise, understand my frustration and will INVESTIGATE but all I want is a resolution this time. 2 weeks is too long to listen to 2 calls which a both less than 10 minutes and there is prove of an email which I sent. Their service is the worst. Dont enter into any agreement with them if you want peace and based on the hello peter ratings amd their responses, their service to assist with complaints is even worse. All cases I have opened are closes with no feedback.