Thank you for your response.

It is unfortunate (and somewhat bewildering) that two of your very own themes don’t work well with each other. Specially when considering that the sharing of a common plugin would normally imply synergies, not complete incompatibilities.

More troubling, though, is the fact that we saw no mention — or warnings — of reported errors for these themes in multisite installations on the extensive description of both of the products (to say nothing about the above incompatibilities).

So we have now bought two items of yours but are limited to using only one of them, assuming that one works at all in the long run.

This is disappointing and unacceptable, and given your response we will most likely investigate the possibility of a refund.