I signed two mobile phones in Singapore. Can I go back in three months?

Based on the information you provided, I can't give a definite answer. Whether you can return to Singapore after three months depends on many factors, including but not limited to the following aspects:

1. Your visa type and validity period: If your visa type allows you to stay in Singapore for three months and your visa validity period has not expired, you may be able to return to Singapore. However, if your visa type does not allow you to stay in Singapore for more than three months or your visa has expired, you need to re-apply for a visa to return to Singapore.

2. Your mobile phone contract: If the mobile phone contract you signed in Singapore does not violate relevant laws and regulations, and you have paid the phone bill on time, you should not be repatriated. However, if you violate the terms of the mobile phone contract or fail to pay the phone bill on time, you may have to bear corresponding legal responsibilities.

3. Singapore's current policy: If there are any special policies or restrictions on travel or entry and exit, it may affect whether you can return to Singapore. You need to pay close attention to relevant policy changes to ensure that your travel plan meets the requirements of the Singapore government.

In short, before deciding whether to return to Singapore, please be sure to carefully understand the relevant laws, regulations and policies to ensure that your trip is smooth and will not violate any regulations. If in doubt, it is recommended to consult relevant laws or immigration professionals.