Worst experience ever

I have been going back and forth every day with Emirates for 5 days now. I have had the worst experience regarding my booking from the time of making the booking. It took me almost 3 hours just to make my booking. I was trying to complete my booking with adding a stopover in Dubai and there was no additional cost when doing so. I kept getting an error message and it said my booking could not be completed and I had to start over and fill all the details in again which took time. I did this countless times until I had to proceed with my booking without the stopover and then only my booking was accepted. Due to this issue, I have now had to go through the inconvenience of making changes to my booking and having to pay a change fee when it was not my fault. The same day, I contacted customer support regarding the issue I had when booking my tickets and I spoke with an agent named Renferd who stated that the change fee could be waived as a one time exception due to the issue I had when doing my booking. When I proceeded to make the changes, there was an issue and I was told that I need to fill out a form which I did right away. I waited until the next day to get a response only to be told that the account administrator needs to contact to authorize the changes. I tried to get back in contact only to be told I could not reply to the email and would have to fill out a new form. This was done a few more times and I waited another day to get a response before I could get the information I needed for the account administrator to contact. I have been going back and forth all this time and I was finally able to get the changes authorized and I received an email with new tickets however nobody assisted me with regards to the change fee which I kept asking about as I was promised it would be waived. I reached out again today after receiving the new tickets and now I am being told that they cannot assist me with the change fee now as the time frame has lapsed and it is now too late. This is extremely upsetting and frustrating. The last agent I spoke to just told me "there's nothing we can do now so fill out the complaint form". I was never told about a time frame and each agent I have been in contact with has given me different information. This whole process from the time of making my booking has caused me a lot of stress and I have not been offered any solution or compensation for anything.