Blood vampires

The person I called to change my details, told em about a blood clinic between 3 and 7pm today. I took the afternoon off work, to drive there, only to be told per phone call that plans had changed and that they were at the Netcare hospital till 3.30. I drove through here, only to be told I cannot park anywhere except in the paid parking lot. I did not have my wallet as I drove JUST to donate blood. So I guess they dont really want blood ? The nurses were unfriendly and unhelpful. Please dont bother me with calls and emails requesting I donate, again. Afer over 20 years, this was a slap in the face.