[GunnCat]

Move on Toby. <-That was my original advice. You can email him one more time and just let him know that if you can't get content required to submit to his tgps, you can't afford to submit his galleries just to have them declined because of the size of the images. Sure, it'd be great to be able to submit endlessly to TGPs and LLs, but many of us pay to submit a certain number of galleries and our submissions are money to us. We just can't afford not to get listed.
If he can't understand that then move on gracefully.->