One More Puppy

So our dog had puppies about 10 weeks ago(they are full bred boxers). Well we thought we had them all sold from almost the time they were born, well there is one left. A lady had dibs on this little girl almost the day she was born. Well she asked if we needed her to send some money and stupid me said that I thought it would be ok if she just paid in full when she was 8 weeks old and pick her up. Well here we are and she kept pushing back when she could pick up the puppy but she lives kinda far away and they were pretty good excuses so I let her move the day. Well Last I talked to her was on Sunday and she said that by Monday she would pick the puppy up well I never heard from her and so I text her 3 times Monday and then called her 2 times Tuesday and NO reply. I am so frustrated. I just want to know even if she doesn't want the puppy (which will be so annoying) but at least just tell me. Am I right?? So here I am with one puppy who needs a new forever family. So if anyone knows of anyone or wants a Boxer puppy let me know. She is soooo good I love her to death but I am just done with puppies right now. We already have 2 dogs and can't handle one more right now. She is even partly house trained because I have been letting her in with the kids some. So if anyone wants her let me know! I will post pictures of her soon!