Does everyone have trouble connecting accounts to Fidelity CMA?

Recently opened a CMA and am trying to consolidate down to one account to automate my payments monthly without having to move money around so much from holding accounts to checking accounts. I am now 3 for 4 on linking bank/CC accounts to Fidelity that I am running into issues. One bank says they can't validate ownership through normal process so want me to get on a three way call with Fidelity, the other is researching why transfers won't work, a CC from another bank had to manually mess with something on their end to get it set up with Fidelity... I've now been on calls/emails for what seems like forever to just do tedious linking crap. My Chase credit cards so far were the only ones that I had no issue adding Fidelity (but maybe once it comes to payment it may kick me in the butt also) as a paying account but so far three other banks have just been a pain.

I have several other links between accounts with these banks and have never had issues, but seeing that its 3 different banks now I am wondering if it is more of a Fidelity side issue. Just wondering if this is normal with dealing with Fidelity cause if it is, I may just get out before I get too far in.