Problem with Bay messaging system

[ukrainian_brands]

I'm trying to write the following reply to buyer's message: "

Hello Larry,

I can see that you've bought 3 pipes and 1 pipe stand. 2 pipes came with flat stem and 1 came with round stem. Would it be OK if I send 2 flat stems to you?

Thank you for purchases.
Regards, Alex.
Ukrainian Brands Store"

eBay says: "Contact info is not allowed in eBay messages. Please remove it and try again.
{e55956-953688x}"

There is NO any contact info in this message!