GETTING PENALIZED FOR DOING A UPWARDS MIGRATION

I went to do a upwards migration at the Telkom Mobile shop in East Rand Mall. Where as I asked multiple agents at the customer care as well as Kay the branch manager at East Rand Mall, will there be any penalties if I do an upwards migration all parties involved said no only a amount of R400.00 and something. As well as Telkom Mobiles Terms & Conditions state that there is no penalties, as well as I can move anytime as long as I have my contract more then 3 months, and as long as I dont do I downwards migration, The amount needed to pay was R300.00 for contract R300.00 for PRORATA and R400 and something for the migration so my invoice needs to be max R1100.00 and guess what I received a invoice amount of R3374.68 charging me a migration penalty and they added on a bundle where nobody can give me answers to whom gave them permission to add on the bundle, All parties I spoke to: Thabile customer care, Kay Telkom Mobile Manger at East Rand mall etc, agree with me that there must be no penalties, or add on bundle. Its being 14 days now and nobody can give me any answers Case number: ***5 Please Telkom HEAD OFFICE give me some answers and correct your mistake. I AM REALLY FED UP!!!!