misleading Telkom LTE marketing

Door to door Telkom LTE fibre marketing Faerie Glen Pretoria. They signed me up, 3 of them and confirmed twice or more that it was 50GB +50 GB that I signed up for. I even phoned my son in front of them to check if 100GB was enough/sufficient for a month and not once did they tell me that it is only for 6 months!!! My notification/welcoming email from Telkom brought this to light. This, only after it was installed, was sent. I was NOT aware of this and this is NOT what I understood I was signing up for!!!! I feel utterly disgusted and disappointed in Telkom, misinforming me, selling me something for more money and less product.