Poor service

I ordered a rain uncapped lte package on 29/05/2020 and was informed that delivery takes between 1 to 3 bussiness days which is fine. I recieved a sms and email on 01/06/2020 that my package is recieved an will be delivered on that day i was impressed it was so quick then realised that i personally must sign for the package an saw the adress on the email and sms is my home adress and i will be at work for the whole week between 08:00 to 17:00 as is their delivery time so i then phoned ram customer service and spoke to a customer service agent to change my delivery adress to my work adress instead of my home adress and the customer service agent verbalised she will make the changes and reschedule the delivery for 02/06/2020. The morning of 02/06/2020 i have not recieved an sms or email of my order going out for delivery so i call the customer service department again and speak to a different agent than the previous day and she informs me that my adress was never changed on their system and there is no notes of me calling to change the delivery adress i then informed the agent that i am upset and i would like to change my delivery adress from my home to my work adress again and i the proceeded to ask her if i must phone again tomorrow to make sure the change of adress has been implemented. This caused an 24 hour delay for no good reason and this is absolute poor service from ram and to add to this all my previous encounters with ram was also poor. This agent i spoke to today verbalised that she will follow up with me tomorrow via a call.