First **** too then harassed when not interested

I was phoned as a loyal Mr. P customer and offered a tablet at a better price. Being skeptical I asked ALOT of questions, 1 being is there hidden costs or additional costs, to which I was told no just the R99 a month. I agreed to sign up to it and gave all my details. I was told numerous times that the call is being recorded and she carried on to tell me what I had signed up for. Suddenly I had to pay a start-up fee, double fee for the first month, an additional R29 a month for itemised billing and the list just grew. I then told the lady I was not interested anymore because the R99 was not that anymore. She would not take me seriously and kept telling me I do not understand. I eventually screamed that I was not interested and hung up. She then phoned me about 10 times on my cell phone and started harassing me so much at work that my Manager had to step in and tell her to stop phoning. As a loyal customer I feel this kind of treatment is uncalled for and has left a bad taste in my mouth for Mr Price. God forbid that tablet gets delivered to me or a debit order gets taken off my account because then MRPMobile is going to hear it from me!