Please help me with signing up to gmail account

I have a problem with gmail, cuz yesterday, i want to register the gmail account, and its all fine at the first page, and after that, it comes with this verification by asking me to verify it using my phone, and then, ive put in my number as normal in the box. But i didnt received any msg from them.. even ive tried so many times. It is a valid number.. hurmm.. wondering..~Nikirta~