As a punter doing online betting, you hope that you will never need to contact customer service. However, it is reassuring to know that help is at hand from bookmakers like Mark Jarvis if something does go wrong or you have a query. Most bookmakers provide a range of ways to get in touch, including email, live chat and telephone. Assessing the quality of customer support is a major part of the horse racing betting reviews conducted by Horsebetting.com pros.