I don't object to you taking time to let this matter 'ventilate' before deciding but rather I understand why you may feel that approach is prudent.

I think it would help to limit drama/debate if you could, in the least, clarify by reply:

1. Will you refuse/ignore any submissions external to the original terms, as mandated by the original terms (i.e. will you uphold or disregard clause 6)?

2. Can you provide some guideance or ETA on your decision regarding the refund?