Concurrent Debit Orders running at FNB

Blue Label Connect contacted me in May 2019 to offer me a cellphone contract which I accepted for an amount of R 299.00 p.m for 24 months I do have the Debit Order agreement that states the R299.00 p.m I noticed that they have an additional debit order of R 329.00 that is flagged at First National Bank as Non-Reversible. FNB advised me that this type of reversal must be claimed from the service provider, when I contact them the number has changed and the name is now Bigworld Mobile and I cannot get through pass the automated voice switchboard. They contacted me to offer the contract upgrade I did in 2016, I have been waiting for over 10 minutes multiple times and get disconnected from the switchboard automatically after the wait. This company is *****, they are wolves in sheep skin and First National Bank is also to be blame as they cannot allow such debit orders on their client's bank accounts