2. 888sport - This popular 9️⃣ betting platform offers free rounds on selected slot games as part of their welcome bonus for new customers. They also 9️⃣ have a loyalty rewards program that offers free rounds and other perks for frequent players.

3. William Hill - This well-known 9️⃣ betting house offers free rounds on selected slot games as part of their welcome bonus for new customers. They also 9️⃣ have regular promotions for existing customers that include free rounds and other bonuses.

It's important to note that the availability of 9️⃣ free rounds and other promotions can vary depending on the region and the specific terms and conditions of each betting 9️⃣ platform. It's always a good idea to read the fine print and understand the wagering requirements before taking advantage of 9️⃣ any promotions or bonuses.

In summary, there are many betting houses that offer free rounds as part of their welcome bonuses 9️⃣ or loyalty rewards. Some of the most well-known betting platforms that offer free rounds include Bet365, 888sport, and William Hill. 9️⃣ However, it's important to read the terms and conditions carefully and understand the wagering requirements before taking advantage of any 9️⃣ promotions or bonuses.