Consolidating and Posting Brand Name GSA Requirements

Initially, a decision was made to issue four (4) identical $14,000 GSA Schedule brand name requirements with different delivery locations separately. After receiving one quote from the same vendor for all four (4) RFQs and submitting the delivery orders for a review, a request was made to consolidate the orders, therefore, increasing the total value to about $56,000. Do we have to cancel the four RFQs and re-issue the solicitation with the restricted consideration memo and brand name justification on GSA e-BUY, or is it acceptable to add a memo to the file documenting why the requirements were initially processed separately and proceed with award?