Link Africa- too big to care for their smaller clients

I have had a service with Link Africa for over 31 months and when it comes to them honouring a renewal contract, they have been unprofessional and lacklustre. Numerous emails and requests for assistance and a resolution have fallen on deaf ears. I am now fed up and no longer prepared to beg for service. Another big company that is only concerned about their bottom line and not prepared to service the small companies fairly. Good ridddens.