Very bad service continues

I started my cellphone upgrade process on 24/05/2020. However, I then got conflicting information on monthly instalment going forward. I rejected confirmation of upgrade, but that did not work. Was told consultant will contact me. No one contacted me and then I received messages informing me that my parcel is being shipped. Send about 7 messages, contact customer services twice, send an e-mail to DL Admin Team (Ref # EC-1ZUR-2DGIH2 – was told will get feedback within 24 hours). I did not accept the parcel / phone when they tried to deliver it on 29/05/2020. During all of this, I was not contacted ONCE. Don’t know what else to do to get some service and I am sure I will now have issues with my account at the end of the month in that it will reflect the upgraded package amount which I did not accept.