When user purchasing the service plan in Marketplace of CCP, CCP automatically scroll the page at the very top of the page despite the service plan may be at the bottom of the list.
The action is not user-friendly as user has to scroll back manually every time he needs to proceed with purchasing.
The cause is software issue #APS-43156.
The fix is planned to be included in one of the future product updates. Contact your Technical Account Manager or PTA team (firstname.lastname@example.org) to trace the status of #APS-43156.