It is absolutely time to lay low, under the garden, Lord of the Rings Hobbit Middle Earth style... With new accts and lots of cash flow some creditors get nervous just from the possibility that there might be money laundering activity. IMO it is time to consider getting a business credit card. They are not that difficult to obtain, and leaving large balances on them don't affect your PERSONAL credit score. Not sure about your bank, but Chase offers some cards, (Ink Business).
Starting Score: TU 686 EX 641 EQ 690