Spam filter in hotmail not working.

Everyday I am getting the same couple of pieces of spam email in my hotmail inbox, spam that usually goes to my spam/junk mail box. While most of the spam mail still goes to right box, these couple get through to my inbox. Several months ago all my spam went to my inbox for 4-5 days, maybe 3-350 spam mails a day in my inbox. At the time I noticed many others complaining of the same problem. Microsoft (or someone) was able to stop it last time. I hope someone can stop it this time before all my spam ends up in my inbox. I should add that I use an iPad, not a laptop or computer.