Anyone Else Having Trouble Purchasing From Steam Sounds Supreme?

I've made two attempts to purchase some wagon packs from Steam Sounds Supreme, both cases it hangs at the "sending data" part. This is the case in both Chrome and Edge. Has anyone been able to succcessfully purchase from them recently?

 

Try turning off any Ad- and Pop-Up blockers.

 

+turn off any VPN software (pause)

 

It seems something is/was blocking PayPal both on Chrome and Edge at home, and on Chrome at work... Finally had the purchase go thru via Edge at work...