Reliance Home Comfort

We bought from Reliance because of their warranty offer and good product. We purchased a Carrier Furnace , the Carrier A/C above 13 S.E.E.R. in April 2017 very happy with the install Jonathan and Randy were very professional and efficient. Bad point: paperwork! We were promised 2000$ incentive rebate from Union Gas and 650$ (250$ furnace 400$ AC) for the O.P.A. rebate. Got the 2000$, received confirmation for the 250$ however the O.P.A never got the request for the 400$. I have contacted the representative by emails since May. Even called the Reliance office no answer or follow up! Getting frustrated with these follow up.