Money taken from my account

On the 13th of September I purchased items on Takealot in excess of R1400 using instant EFT. The transaction was successful and the money came off of my bank account. However a message popped up from Payfast saying that my payment could not be “authorized”. I contacted Takealot who confirmed the funds were not sent over to them from Payfast. I sent proof of payment to both Takealot and Payfast. Takealot responded to say Payfast is not responding to their queries regarding my payment issue and I should keep contacting them personally. My emails went unanswered and now Payfast has my money and I have no clue how to get it back since they are virtually not contactable. To date I have still received no response to my numerous emails. This is bordering on theft. The fact that there are no responses from them on Hello Peter indicates there is a lack of concern for their customers. I am also a merchant and use Payfast’s payment portal on my website and I would hate for this to happen to my clients. Please be weary using Payfast.