Terrible service

I've been using the same number for 20+ years, never had a problem. However, on Saturday (23/12) my service was disconnected, and when i went to the Vodacom shop (Mall of the North, Polokwane) i was informed to phone the call centre which then informed me (by a very unhelpful staff member i must add) that my number's been "ported". I do not know what this means and when querying this was informed that i've requested for my number to be "ported" and in order to fix this it will take 2 months. I've never requested this and i need this to be rectified by Vodacom immediately! I use my phone for my business and i am loosing income due to this as my clients can not get hold of me. And nobody can assist me, requesting details for an account but this is a "pay as you go"!