Extremely angry and frustrated

Guys your agent told me that if i make a payment for the upgrade it will happen immediately... I paid for an upgrade from 20/10 speed to 100/50 speed...i cant do my work because of this extremely slow connection... What is so difficult about me forfeiting my voucher to make way for the new one?? I cannot do my job!!!! If this was explained clearly, i would never have upgraded and made payment if it cannot be done , i would have made alternate arrangements. You guys should be in contact with Vuma to make this arrangement smooth coz am making my payment to you...now i have to go back and forth between you and vuma to release and update my speed. This is annoying and extremely frustrating for me as a customer for trusting you to handle my internet connection and now you are failing to assist me inwith such a small matter.