Incorrect data option captured by staff

I visisted telkom at liberty mall on the 23 November 2018,my husband and myself had taken out the same cell phone contracts which included 10 gig promotional date for the first 6 months months. My husband has a problem using this data from the day of purchase. We had visited another telkom store at liberty mall who advised that there could be a problem with the Sim card and we have to return to the store where the contract was taken. We visited the store and was advised that they are unable to assist us and was accompanied to an iPad and was advised we would receive a call within 15 minutes which we did not receive. We also explained that my husband's account was meant to be debited on the 20th of December and the debit did not go through. We called the call center today and was advised that my husband's contract was captured incorrectly initially at the point of purchase, his contract is full speed wi fi access instead of promotional data. Kindly assist in rectify this error and reimbursing my husband with the data which was lost as a result of a error of the staff member capturing the contract. And regarding the debit order this will effect my husband's credit record negatively as the debit order was meant to have gone of on the 20th of the month.