Vodabucks store headache

I purchased 5 items through the Vodabucks store on the 12th May using my points, received my codes to complete the purchase on the Edgar's website, which I did and the codes were invalid. Received an sms from Vodacom on the 14th to apologies for incorrect codes and that they will allocate new codes, which they did on the 15th. However those too are invalid. I called on the 22nd to find out what needs to be done as the check out expires on the 31st of May. I was informed that the query will be escalated to the Rewards Support team and they will be in contact with me. On 22 I got an sms to say my query has been resolved without any communication. I called and was told I'll be called back in an hour... I'm still waiting. May I get a resolution as the check out expires in a few days