The creation of a Bit.ly link with "44WhatsApp" could serve several purposes:
The short answer: No.
There is no legitimate reason for a company to send you a cryptic, shortened link from a random UK number asking you to click for a prize or a deal. Legitimate promotions use verified business accounts (WhatsApp Business API) with green checkmarks, and they use custom short domains (e.g., shop.verifiedbrand.com), not generic bit.ly links. Bit. Ly 44 Whatsapp
You can create your own "Click to Chat" link for others to contact you. The syntax uses the domain wa.me followed by your phone number in international format. The creation of a Bit