Disappointed child

I have been an existing MTN client for many years. i app**** for a new contract with teh intention of giving it to my son who turn 11 on friday 24. I app**** for the contract on Sunday 19 July. I received contract apporval on Monday 20th. Went into the store to collect the phone only to be told there was no stock. They assured me stock would be coming on tuesday but definetly before friday and if not they would get it from another store. i received no communication and after visits on Tuesday and Wednesday still nothing. Now today they advised my wife they will not have it in time. Needless to say I now have no birthday present for my 11 year old. MTN has made a **** of me and left me in a situation with my child. I will escalte it as clearly MTN numbvers continue to slide and it is because of this inefficiency and failure to deliver