Teaching qualification rectified

In September I got my teaching qualification. I thought. But it turned out I didn't! Recently, an email pinged into my inbox, informing me they had sent the wrong documents. I had been given a generic qualification, not a postgraduate one! I had noticed it didn't say 'postgraduate' but I hadn't payed much attention to it. But it should have mentioned it! So I was asked to send the old certificate back, and then they would send the correct version to me. A bit late but now I am actually qualified!

 Spot the difference