Bad service

I would like to know how?????????????? We misplaced a cell phone in February and I locked the number at Vodacom. We retrieved everything and went into the Vodashop at President Hyper in Krugersdorp and asked them to undo everything and it was done as the number could be used the same dayl Now APRIL all of a sudden the PHONE is black listed and now they cannot help undoing the block on the phone???????????? When we went to the vodashop they should know what and when to do everything not me I am admin/secretary/dataentry/accounting I have NO knowledge on cell phones NOW VODACOM tell me I must go into the store AGAIN to undo the block on the PHONE?????? Sorry surely someone can recommend a network where the people working at the shops knows what they are doing?