Poor service on Woolworths online

I am very disappointed with Woolworths Online. I ordered some stuff online in March if I am not mistaken and they said they where going to deliver on the 19th of April. On the 19th of April my package was not delivered and I sent them an email on the 20th advising them of that, but according to them my package was delivered. I advised them that I did not receive the package till this that they have not resolved my issue. Is it because the delivery was free is that why I got such a poor service. They just didn't care about my issue. They tried to contact me on my cellphone to speak to the driver, and I wonder how was that going to help me. They never called the next day and they never used the alternative number I have them on my original mail. I will never use Woolworths online ever again.