Dishonest billing on Deezer music app

I don't recommend Deezer as they have dishonest billing. More than once I experienced billing twice a month. And with these music apps theres no head office to report your complaints too. I will be opting for spotify as they allow for vouchers instead of the app directly deducting from your bank account. Deezer is not worth the trouble as it poses a threat to one's bank account