BetEast is a serious bookmaker with a very good reputation. No, it's not a lie. You can check that yourself. The simplest thing you can do is check google images - https://www.google.bg/search?q=beteast+swansea&rlz=1C1GTPM_enBG694BG694&espv=2&biw=1920&bih=950&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi-0I27xOTQAhXDfywKHUShBDMQ_AUIBigB#imgrc=_

If you were familiar with Swansea team you would know BetEast is an official sponsor.