Business ProfileforD & A Fireplace and Patio

I had landscaping completed on May 12th, 2022 by D and A Landscaping and Patio. I paid $2,625, paid in full.The business and I agreed to having a retaining wall installed in front of my house, in front of my fence and a square retaining wall around the front tree along with edgers along the east side of the house. The owner was suppose to install said landscaping but had an employee do it instead. I am disputing the quality of the work. The employee used my mulch instead of top soil to fill in gaps, not enough paver base was used. The landscaping stones were not recessed into the ground for stability. Sections of the retaining wall rock back and forth. Multiple stones have come loose and I've had to reattach them with landscaping cement. Sections have settled since not enough paver base was used and there are now gaps between the stone. Some stones were not offset and seams are lined up causing weak spots. I advised the owner of the issues and he came out and did not agree and did not take accountability for the poor installation. After arguing he agreed to give a small partial refund for the square around the tree which did not add up correctly when compared to the amount he said labor cost plus the material. I declined and after more arguing back and forth he hesitantly offered to fix only the square if I signed off on the job saying nothing else was wrong and if I removed my negative review from ******* I told him I would not remove my review but I would update it and I needed all issues addressed. He than rescinded his offer and refuses to fix the issues. I was ultimately looking to have everything installed correctly by the owner but after his poor customer service and insulting me I no longer want him on my property. Therefore I am looking for a fair partial refund. I have text messages as evidence if needed.Note: on the estimate the $700 edger along the side was removed from the job so subtract that from the total and I had some edgers in the rear for $75