Bed bugs problem

Hæ hæ! I’ve been living in the same house the past 2 years. Around 10 days ago I bought some stuff from Góði hirðirinn and I believe a bed bug came with them and 5 days ago my partner and one roommate started having bites, me and our other roommate were and still are fine. We never had issues with bites before. We checked our mattress 3 days ago and sadly we found 3 adults and some eggs and babies. I killed them all and taped every hole in the mattress and steamed cleaned every furniture in the house. The bites are less today and we haven’t seen any bed bugs. We are beyond desperate and called pest control but they charge 150k for each room. Does anyone know where I could find a spray or anything related to bed bug treatment ?