All Themeforest purchase numbers being rejected as invalid

Can anyone help me?
I have several copies of the Porto WP Theme. I cannot update theme on any of my websites because the purchase code is rejected
I cannot raise a ticket with Okler as the purchase code is being rejected on their website too.

I need support from themeforest or envato - but I can’t find any way of contacting apart from via the forum.

Very grateful for any help!

Hi, you can contact the author via item comments: