I basically agree with Matsu but I suppose OP's asking for it in "the casual style" not in "the polite style (丁寧体)" so I'd write it as
連絡もらえてうれしい(+よ)
or
連絡くれてうれしい(+よ)
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I left out the subject わたしは, the particle を after 連絡, and あなたから(from you) or あなたが(you) as the subject for the くれて.