Don't understand the point of credit checks

<p>I have been with Telkom since 2010 I did have a landline with them so a month or so a go I upgrmy line to a ADSL and my son help me as I am Def we first got our data form a ISP called access then I cancel with access because I wanted a deal with mweb where I get a free router to be told by your agents I can't get a free router because of my credit record so I did have to pay for the router I just don't get why I couldn't get the router for free because with Telkom I get a free router with 10,Gb ADSL Data for 24 mouth and Telkom r willing to give me it with out a credit check because Telkom told me they only do credit check on ppl applying for mobile not landline n ADSL the lady's name is Michelle you can call the call centre of Telkom i did talk to her n she told me that n that's why I question this that ! mweb doing because then I can just as well have gone to Telkom I m posting this report on a friends profile will await feed back</p>