Floral Design Landscaping

I saw this new manager at the Floral Design Nursery before June 2019, picked out 5 Emerald Cedars that were to be 5-6 ft and put aside, I called for several weeks to have the work done and stated by the manager noone was available to plant and finally she decided to plant these on her own in my side backyard on June . I asked her that day of what their warranty is and was stated 1 year. I watered these night and day plus putting fertilizer sticks on each and found in approx. 4 weeks only 2 took and 3 were dyeing. I called back this manager to look at these and she stated the other 2 should come back if I water thoroughly, I felt these would not yet I ensured to put a soaker hose on all 5 trees for weeks. the 3 kept getting worse and were dead trees. Then was told she would speak to the owner about this. I called 2 weeks later as no response, the owner answered and claimed he knew nothing and did not like my tone. I finally received an email from this nursery manager claiming she spoke to the owner who stated sign an invoice and pay another $300+ then I would get replacement of the trees or pay $60 each, pick up new trees myself and dig out the old ones myself. I never experienced such a run around and dishonor of the so called warranty. It is obvious for 2 trees surviving not side by side and 3 dead, most likely root shock according to a reputable Nursery in Ottawa. The last time I spoke to the owner by phone last week he then stated we do not honor warrant on sale items..