Capital One complaint: deceiving letters and offers , lowering my credit score

I received an offer about 5 months ago saying I was preapproved for a credit card so I followed their instructions did the application that they had half done already and I was turned down and my credit score went down due to the hard check that they said was not going to happen that’s going to be on my report for 2 years my score went from good to fair, I’ve been working on my score for the last 2 years since my divorce put me behind well last month my score went over 700 after allot of working on it for the past month I’ve been getting preapproved letters from all kinds of creditors including capitol one who has the lowest interest also they are relentless I get mail offers from them all week I have a trash can full of them and 2 right here on my desk so I figured since my score went up and they turned ma down before they see how my score and credit rating is very good except for their last check which ib cant remove without paying a company 600 , I just did it again thinking they were telling the truth this time but no I followed instructions again and in minutes everything they offered and said was lies I was turned down then that say we can help you find what your looking for , what I’m looking for I wasn’t looking you offered you offer all month long saying.

I’m pre approved a reserved spot for me so now I guess in 2 days my score of 668 will go down another 30 points do to their deception making me have to work even harder to reach over 700 where I was before I fooled with their first offer and the really sad part is ollo just approved and gave me a credit line just like they said in their offer of my reserved place pre approved , I will never do any business with capital one ever in life and if these mail offers keep coming to my house I will see about harassment I’m trying to buy some land to my mobile home on which is paid off that’s why I’ve been working so hard on my credit and capital one is driving my score down every chance they get and I don’t even have a card with them it doesn’t seem fair at all . look at all the mail that’s from today I still have more in the trash I’ve been preapproved from other creditors and they stood behind what they said and I was approved I think credit one just sends these lies everywhere to who ever not caring about the damage that a hard inquiry that’s been turned down does to peoples credit i wish i had just kept tossing their letters in the trash.