When customer goes to checkout, and fills out all the fields, and then gets to phonenumber, the shop starts to validate a checkout method, and the customer is not able to fill out phonenumber correctly, without closing the error popup, resume, and fill out, and close, resume.
Ultimo theme: 1.6.1
Checkout IWD OPC: 3.0.7
Hope anyone can help me, and point me in the right direction
-- Best regards -- Kent Christiansen | Magento Certified Solution Specialist