B2B Handsfree

My webpage is designed for B2B purposes.
I tried to find B2B login with VAT verification.
There are lots of apps supporting custom login format but most of them didn't support VAT verification feature. But this app DOES!

Also, I contacted the customer service several times asking them to fit the registration form design to my website and making the form as the default registration form and all of them were solved so quickly.

VAT verification feature and customer service of this App is the most outstanding point.