Edgars poor service!!

I have always purchased airtime through my Edgars account. It is just more convenient. All of a sudden, they just took the option of purchasing airtime away without even notifying me. Now they won't even respond to my messages. I was given a reference number, and was then told that they don't work with these problems over a weekend or public holiday. (why give me a reference number then?) I just think it's poor business ethics to not let a a paying customer know what is going on. I was already given 2 reference numbers, but yet nomebody seems to assist. When it comes to Edgars needing payment, they will do anything, but as soon as you need assistance from them, niks, nada, nothing!!!