Pick n Pay Appalling Service

Pick n Pay Trade Route Mall Lenasia Call back voucher service level is appalling. I have been communicating with the Store Manager from the 29.09.2018 regarding call back vouchers which has not materialized to date! He keeps on saying that he will call when the products are available, however this never happens. Some of the call back vouchers he wrote in the book as the store ran-out of these vouchers to issue to customer. I need this nonconforming service to be investigated. I have been to the store a week after the call back voucher was issued only to be told by the Pick n Pay employees that the stock i have on my call back was available a few day ago. So why was i not called by the Store manager who committed to calling when the stock arrives??I have a few items on a call back from the 29.09.2018. Kindly arrange for a regional / Area manager to call me in order to discuss this nonconforming services rendered. The procedure relating to Call back vouchers at this branch should be reviewed and the commitment from the Store Manager should be maintained.