We transferred my wife's number to a new provider. Although we considered another option for a better price, we truly value how seamless everything has been with this company. Whenever we needed assistance, they were readily available on the phone. The only downside was that it took nearly 2 hours to complete the transfer, but everything has been functioning perfectly since then.
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UNDO is Belgium’s first climate-neutral mobile operator.
We combine affordable mobile plans with real impact: CO₂ compensation, reforestation in Congo and Belgium, and Zero Waste on all our subscriptions.
With us, unused data, minutes and texts don’t disappear — they roll over to the next month.
No waste, no fine print — just honest mobile. Starting from €4/month.
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