Never Ever Sign a Contract For MTN DATA Because It's a ****

I have a contract with MTN and I pay R199 per month for 20Gig and I also have the same package with Telkom Mobile paying R199 per month for 20Gig. MTN is putting the DATA in my sim-card on the 27th day of the month but that DATA never ever go beyond the 14th Day of the month, because it last for less than 15 Days and they make sure of that every month. Even if I only use that DATA for WhatsApp only it's the same thing every month. On the other hand with Telkom I use my DATA for everything e.g. YouTube and I even hotspot family members but it still caries over to the following. To prove my point: "With MTN I signed a contract that I need to honor for 24 months and for Telkom it's a month to month contract meaning I can cancel it at anytime. MTN ties you so that they give you bad service and reap you off. Telkom Mobile does not tie you to a contract because they are sure that they will give you a good service". I can't wait for my MTN contract to expire so that I cancel it and never do business with them ever again in my life time.