Vodacom *****s my Vodabucks

This afternoon at 15h04 I bought Just 4U voice bundles of R5 for 30 minutes, immediately I received an SMS that my account has been credited with 5 Vodabucks, however before the bundle purchase/ allocation I had 749 Vodabucks. Later at 22h40 I tried to bank them as they expire at midnight (Fridays) unfortunately the 5 Vodabucks had magical disappeared,I immediately called Vodacom at 22h50 and 22h53 but the line doesn't go to consultants rather to "unuseful" Tobi who send me plenty of useless smses. May Vodacom, please return my Vodabucks, few days ago I lodged a complaint about this Vodabucks but Vodacom dismissed it even without contacting me. I was forced to sacrifice my sleep and complain before midnight as tomorrow morning Vodacom will treat me as if I am lying- they will say I either forgot to bank them or they never existed.