CellC Upgrade-Misleading just to retain clients so be careful

I did an upgrade last Thursday the 6th October and the phone was meant to be delivered either today or tomorrow however when I called in to check the agent told me that it was delayed due to no stock of the ear buds therefore the delay yet at the time of upgrading the agent did say that there was stock available, so does Cellc just upgrade to catch the client with out managing stock efficiently?

I had to call in four times this morning instead of you guys calling me to inform me of the delay since I did say to the agent when upgrading that I will only be available this week for delivery at which point she said that it would only take 3 to 7 days to get delivered.

Further more my contract with Cellc is 20 years + and I was going to finally cancel but Cellc had this nice deal with the free ear buds together with Samsung’s promotion of getting R10 000 cash back for your existing phone therefore I decided to renew but it seems that I might also miss the Samsung promotion since it ends this October so is Cellc going to give me the R 10 000 cash back?