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I have been using Oi s.a's services for a few mont...

I have been using Oi s.a's services for a few months now and I am satisfied. The internet connection is stable and their customer support is responsive. However, the pricing could be more competitive.

I recently used the services of a telecom company ...

I recently used the services of a telecom company and I must say I am quite impressed with their quality. The internet speed is great and the customer support is very responsive. I would definitely recommend them.

The services provided by Oi s.a are excellent. The...

The services provided by Oi s.a are excellent. Their customer support is very prompt and helpful. I am satisfied with their internet connection speed and stability. Overall, Oi s.a is a reliable and efficient company.