Gatvol customer

How do you run a promo without stock? I took out a Oppo contract with the "free" ear pods in September, after taking out the contract I was told there is a back log for the pods come back in 3 weeks, went back 4weeks later and got told come back month end, went back 3 weeks later and got told there is no stock and that Oppo is to blame... I don't care??!! My contract is with Cell C not Oppo! My debit order will decline this month and I will blame my bank... I must say 10 years with Cell C, this will be my last 2 year contract