Fix making several requests to the same campaign by same user

[emadunan]

As a publisher I need ability to make another request to the same campaign I already have some of its coupons So that I can receive new coupons

Details and Assumptions

• Only if the old request is resolved by decline or accept

  Acceptance Criteria

  Given an already assigned campaign to a specific user with the status accepted
  When that same user makes another request
  Then the campaign status changed to pending and a request was sent to the admin

[marcomagdy9]

tested. good job. thanks