no delivery on my upgrade phone

this is the second time in one month i complain about cell c and their disgusting service. on the 17-02-2015 i did an upgrade for two lines, (blackberry z3 and samsum tab T1111 on my contract phones through customer service and Regan Janson was assisting me, but to my suprise i only received the blackberry z3 on the 19-02-2015. on the 20th i phoned them and the consultant told me that i should expect my order today. so this morning i phoned and i spoke to Lee-Ann and she confirmed to me that there was no order on the way because they are out of stock on the tab. this is unacceptable because i even told regan that i really need the tab urgently , but still decide to lie about them having stock meanwhile he knew that they dont have stock at all.