Welcome to Vodafone Community
Mods wont be back until Monday to help. You could try live chat. To use live chat click support at the top of this page then choose the service you need support with (bill or pre pay. etc..). Click CHAT icon that pops up in the bottom right hand corner of the next screen.
You'll just need to keep an eye on the store to see if it comes back to bill pay.
Apologies for the delay in responding to your query. We have received a high volume of queries recently and are working through our messages in the order they have come in. It appears the Google Pixel 3 XL is out of stock. Unfortunately we do not have an update on if or when we will receive more stock. ~Ailís