Broken promises and poor service

On 12 November I submitted an application to Vitality to have my weekly activity target reviewed. I also submit proof of my chronic condition. I never received feedback from Vitality and eventually had to phone the contact centre to find out that my target had been permanently set lower and that it should reflect on the Vitality Application within a few days. Since then I have called in several times and each time got the same response that the target had indeed been lowered permanently and that it will reflect shortly on the app. To date the target has not been corrected and this is now a month that has passed. Can I please ask that (1) the target be corrected on the app and (2) I receive the credit for those targets that I missed since 12 November because if Vitality had indeed fixed my target on the app as they had promised then I would have achieved the lower target. I am really dissapointed in the promises that Vitality does not keep and the poor level of service and find it demotivating in my efforts to lead an active life despite my health issues.