Never experienced such unprofessional service

I have been searching for a home to buy. I came across a very beautiful home I was interested in buying. I contacted the agent on the7th of January and have been contacting him everyday ever since that day. Instead of him been transparent to me that the tenant was been difficult and that it was challenging for him to organise the viewing he kept promising to call me back but never did and would sometimes avoid my calls. I eventually called the manager who promised to call me back but never did. On Friday morning he tried to call me to let me know that he had managed to organise a viewing for Saturday but I missed his call. I then received an email response where I had sent to him asking him to confirm the address that was on the ad. He just told me what time to be there. I then took time on a Saturday afternoon to go view only to discover the address was wrong. I called him and he promised to text me the address of which he did but the address was difficult to find on GPS. Thanks for wasting my time and killing the excitement of being a 1st time home buyer.