Telkom FreeMe spend limit R1000??? Was set at R0 on contract.

It just gets worse and worse. We took out about 16 FreeMe contracts for our business and we set the spend limit to 0 in the store with a SIGNED CONTRACT with an agent called Saadiq Abrahams. When our first invoice came our bill was R7600? Half of the contracts spend limits was set to R1000 when we clearly said we don't want any extra costs on the contract as it is a cheap FreeMe contract. Why would we take out an R70 pm contract and set a spend limit to R1000? Emailed Saadiq he said he cant do anything on his side we must call Telkom. Called Telkom and they said they cant do anything on their side we must go into the store where we took out the contract. Now we are stuck with a signed contract stating a spend limit of R0 and a bill of over R7000 and a debit order we can do nothing about an no one can help us?? What an absolute disgrace.