Dealdash.com Does dealdash use computer bots against us. I should have won many auctions New York, New York

I joined DealDash in November. Was having fun until December. I feel they have some computers bots tracing me. IThey have same big bidders either winning or out bidding us most of the time. Was told we weren't bidding aggressively enough. Well I think $140 bids plus cost of the winning item worth $220 isn't chump change. This is only 1 example. Out $830 in one day and won some mini speakers. Wow wished I'd spent this money on airline tickets to visit military son and grandkids. I didn't mind losing in November seemed fair. But between my 11000 bids and husbands 11000 bids and 2 small wins compared to a month ago is unheard of. I emailed them with my suspicions and ask for refunds on our remaining bids and was denied. I would like to get some of our money back. I was taking photos and documented dome activity and husband deleted some photos thinking I wouldn't need them. I am determined to expose them, yes I had some fun but they I feel very scammed out of thousands of dollars this past month. Is there a way to get a partial refund from them. Will my credit card company let me file fraud case even know we used our bids. Told we couldn't have av refund so played hoping to win but no chance. I really think they had it in for me for complaining so much. I've had problems,s with not receiving items. And them advertising items they said I had to take replacements for but still auctioning. Can't get any customer support. Oh my gosh they should be shut down just for their so called customer service. Just preprogrammed emails if you do hear from them. Still trying to return items and no help almost month now. I won't stop