Very bad and terrible service offered by Thabisile

i went to MTN Shop on durban West Street on the 19th of June at 16:33 to buy data bundles for R35.the lady who was assisting me didnt have time for me as a customer at all,She was aslo chewing a gum non-stop...Apparently the voucher i bought was invalid when i loaded them.Iwent back to her still with no customer service skills,she said to me that their internet is down. on Tuesday i went back but the Gentlemen i found told me that the voucher was used on another number at 16:55 and there is nothing they can do to help.i love MTN but i was soooo disappointed by theservice Thabisile gave me which made wanting to change to another network,if u hate people then i think you must not apply fo a job that will make you work with them.AND chewing a bubblegum while dealing with a client is very very unproffessional.