I've been struggling with this aspect of the English language and I don't know if there are some rules to it that can help me. I've looked for answers on the internet but so far I haven't found anything that can help me clear my mind on this issue.
I was writing this phrase:
"I called at your offices immediately to report the situation and I was assured that it would be repaired soon"
Is there a rule of when the "immediately goes"?
I could rephrase it into this:
"I immediately called at your offices to report the situation and I was assured that it would be repaired soon"
Or even:
"I called immediately at your offices to report the situation and I was assured that it would be repaired soon" (a grammar tool I have on my computer suggests in this particular phrase to change the at to a "to")
Are any of those interchangeable?
Thanks in advance