Sometimes its so hard to have bussines with resellers, i mean buy posts or links from them. First of all they sent same sites all over and over again, i'm sick of telling them "i already got posts there" Another problem, THE REAL ONE - is when the sites are banned, and you ask to remove your article. In that case you cant even reach resellers. Its just like they dissappear. Its really sucks, you know, they made good money thx to US (buyers) and when we ask for something (like delete my post from a banned site) they just ignore our letters.
I understand your problems... this has happened to me to... but in amoungst them all there are some good sellers and quality websites... you just need to look hard and pay more for quality sites. If you pay low prices you will only ever get low quality websites/resellers/webmasters. Also if you pay a monthly price, it is in the interest of the seller/webmaster to keep you happy, make sure the site stays good quality, and respond to you. Also you can try asking for an email address when you buy and keeping in spreadsheet. Hope this helps!