Business ProfileforCrack Hunters and Radon Hunters of Alberta

Crack Hunters installed a radon mitigation system in my home in August 2023. Thought out conversations, it was told to me that they would expect sub 100 Becquerels per cubic meter. This was discussed verbally and insinuated in a text message and confirmed in the quote (all attached). Crack Hunters has come to do a 6 month retest as part of the work carried out and it was found that reading were over 300-400 Becquerels per cubic meters. Crack Hunters took time away to investigate options to bring this into line and it was stated that he wasn't happy with the noise output and was seeking a stronger fan unit etc. We agreed he would come to my house on Jan 9th but before this, I asked him what the scope of the visit would be. There was talk of me having to decide if I want to risk damage, paying for replacements, cracks in pipes and vibrations. My take away was that the system installed and paid for was suboptimal and when challenged, he said that he only works to reduce levels below 90%. I advised him to delay our meeting and I would investigate. Having reviewed my conversations, there is nowhere that states 90% and in the quote, it is stated they would "to lower basement radon levels on Canadian indoor safety standards (which is 200). I provide my findings in an email and invited resolution only to be met with push back and non compliance of the work carried out with more excuses. I must say I have no confidence in this business after seeing his contracted worker but that is not part of this complaint. I am seeking confirmation of my rights and if the business is responsible for rectifying this with no cost to me or what recourse I have to resolution, if any.