I found the law for Maryland and from what it says, pdls are not allowed in the state of Maryland. Not sure how it affects DC. Am trying to find something, but someone else may be able to find it faster, since I am still at work and am doing this in between other things. You might search to see if you can find if these companies are licensed in your state. Since you have MD/DC, not sure what state they lent you the money in. If it was MD, the only thing I would say you would need to pay back would be the principal on these loans.
Check the other laws and be sure, but you might want to think about closing your bank account so they cannot debit any more money from your account. Some of these that you have, from what you have sent you, are almost paid off or paid off, referring to principal.
It looks like you may only owe:
Payday Yes $30
Priemer $50
CashToday $0
Ambassador $30
Have you not paid anything to UnitedCash yet? And MTE, I don't know what your loan amount was, but you said you paid them $90, so it would be the balance.
Now if I am wrong, someone please put me and this person on the right track, but since PDLs are prohibited in my state, I am using that as a guideline.
You will find the Payday loan laws for Maryland here (just select your state),
http://www.debtconsolidationcare.com/paydayloan/explain-pdls-laws.html