Problems with OpenNet internet, Cambodia

OpenNet Offers 3meg ADSL for $12 a month. Signed up last week and they installed on Sat the 28th. Good for about 2 hours then the WIFI signal was lost and all lights on the modem flash on and off. Called the office and was told they would come back, they did not. Next day I called and they said they didn't have my address. STUPID??? The salesman came to my apartment so the 2 techs who followed knew where to go now they can't find me. Sent them a "dropPin" to (support@opennet.com.kh) that marked my GPS coordinates on Google map and they still haven't shown up, this is the 3rd day.