When you have ESPN+, it is straightforward to order the UFC PPV pack. You only need to log into your account and enter the package you would like to stream. In this case, the package will be UFC PPV, click on that, and you get all the fights you would like to watch. However, you can also pay for your whole ESPN+ experience as well as the UFC PPV fights for an additional fee. Therefore, you get all the sporting fun you would like to watch.
Unfortunately, you won’t be able to watch UFC 252 in the BT Sport. Perhaps you haven’t known this yet; the BT spokesperson confirmed that BT company would end the relationship with the UFC on December 3rd. That means BT Sports will no longer broadcast the UFC events on the channel. The UFC 252 event happens on Saturday, 15 August, 2020. But you can still purchase the PPV through the service.